|
|
|
| Study on Seepage - stress - failure Coupling Model for Tunnel Lining with High Water Pressure |
| WENG Qi - neng，QIN Wei |
| Chongqing Jiaotong University，Chongqing 400074 ,China |
|
|
|
|
Abstract Research purposes: The seepage field has the distinct impact on the failure of the tunnel lining in the water -rich area due to the long - term high water pressure on the lining. The corresponding changes take place to the failure field and stress field. Simultaneously due to the effect of the seepage field while the lining failure and the stress change have reaction on the seepage field. The study was done on the seepage field，stress field and failure field of the concrete of the tunnel lining. The fluid - solid coupling was used to express the failure of the tunnel lining and the evolution process for improving the expression accuracy and robustness of failure of the tunnel lining with high water pressure.
Research conclusions :(1) The macro expression of the concrete failure can be unified with the micro changes and the representative volume element can be used as the study objective of the fluid - solid coupling of the tunnel lining. (2) The fluid - solid coupling model for the seepage field， stress field and failure field of the tunnel lining with high water pressure and the iterative method can be used to enhance the model feasibility. (3) In the calculation of the real consumption，the calculation and simulations can be made to express the lining failure on consideration of the situation with the coupling or with no coupling for more objectively reflecting the actual situation by using fluid - solid coupling model. (4) The fluid - solid model is available for the healthy monitoring and maintenance of the tunnel.
|
|
Received: 04 December 2012
|
|
|
|
|
|
[1]白卫峰.混凝土损伤机理及饱和混凝土力学性能研究 [D].大连:大连理工大学,2008 .
Bai Weifeng. Study on Damage Mechanism of Concrete and Mechanical [ D ]. Dalian ： Dalian University of Technology，2008.
[2] Gerard B，Breysse D，Amiviouche et a1. Cracking and Permeability of Concrete under Tension[ J]. Materials and Structures，1996 (3) :141 -151.
[3]翁其能,袁勇，杨红.开裂混凝土衬砌的渗透模型[J]. 铁道学报,2008 (2 ):124 -127.
Weng Qineng，Yuan Yong，Yang Hong. Permeability Model of Cracked Tunnel Lining Concrete [ J ]. Journal of the China Railway Society，2008(2) :124 -127.
[4] LOUIS C. Rock Hydraulics In Rock Mechanics [ M ]. New York： Verlay Wien，1974.
[5]杨天鸿，徐涛，冯启言，等.脆性岩石破裂过程渗透性演化试验[J].东北大学学报（自然科学版），2003(10): 974 -977.
Yang Tianhong， Xu Tao， Feng Qiyan， etc. Experimental Investigation on Permeability Evolution of Brittle Rock in Failure Process [ J ]. Journal of Northeastern University，2003 (10) :974 -977.
[6]王健秀，胡力绳，张金，等.高水压隧道围岩渗流-应力耦合作用模式研究[J].岩石力学，2008(S) :37 -240.
Wang Jianxiu，Hu Lisheng，Zhang Jin，etc. Research on Seepage - stress Coupling Mode in Tunnel with High Water Pressure [ J ]. Rock and Soil Mechanics，2008 (S) ：237-240.
[7 ] Meghdad Hoseini，Vivek Bingdiganvile，Nemkumar Banthia. The Effect of Mechanical Stress on Permeability of Concrete: A review [ J ]. Cement & Concrete Composites ，2009(31) :213 -220.
[8]张巍，肖明，范国邦.大型地下洞室群围岩应力-损伤- 渗流耦合分析[].岩石力学，2008(7)：1813-1818.
Zhang Wei，Xiao Ming，Fan Guobang. Stess - damage - seepage Coupling Analysis of Sourrounding Rock of Large - scale Underground Caverns [ J]. Rock and Soii Mechanics，2008(7) :1813-1818.
[9]赵吉坤,张子明,祁顺彬.混凝土破裂过程细观损伤与渗流耦合模拟[J].河海大学学报（自然科学版），2008 (1):71 -75.
Zhao Jikun， Zhang Ziming， Qi Shunbin. Coupled Simulation of Meso - damage and Seepage during the Process of Concrete Failure [ J ]. Journal of Hohai University (Natural Sciences)，2008(1) :71 -75.
[10]吴金刚,谭忠盛,皇甫明.高水压隧道渗流场分布的复变函数解析解[J].铁道工程学报,2010(9)31 -34.
Wu Jingang，Tan Zhongsheng，Huang Puming. Analytic Solution of Complex Function to Distribution of Seepage Field of Tunnel with High Water Pressure[ J]. Journal of Railway Engineering Society ,2010(9) :31 -34.
|
|
|
|
2013, Vol. 30 
